While everyone is debating the effects of possible trade sanctions on the global economy, few are paying attention to a far more serious issue. Enormous global debt, combined with low-interest rates, have set the stage for a global recession that has the potential for economic chaos.

The combination of enormous debt and artificially low-interest rates were at the center of the 2008 credit bubble. One would expect central banks to be aware of this and show more concern. However, the overall silence has been astonishing.

An exception to this is the Bank for International Settlements (BIS), which has been making loud noises about the toxic level of global debt and the anticipated bubble. It recently reported that the global debt of 2008 was $60 trillion, small when compared to the current debt of $170 trillion. To make matters worse, today's global debt is 40 percent higher in relation to GDP than it was in 2008, just prior to the Lehman Bros. downfall. To add to the current headache are the rising debt levels of emerging markets and corporate debts. According toMcKinsey & Company, a global consulting firm, two-thirds of U.S. corporate debt are from corporations that pose a high default risk.

Countries such as Brazil, India, and China have been busy issuing questionable credit. This dubious credit being issued in many emerging markets has come with extremely low-interest rates. If the borrowers' default, the lenders won't be looking at enough compensation to recoup their loses. Low-interest rates have become an overall global problem, including the rates in the U.S. high-yield bond market. Central banks around the world have been keeping interest rates artificially low while printing money with abandon. The current global debt is the direct result of this policy.

$2 trillion in corporate debt will be maturing annually through 2022. A considerable amount of this debt may default and cause debt repricing. The damage caused by central banks and their policy of easy credit has been done, and there is little that can be done at this point to stem the tide. It can only be hoped that they are more aware now than they were in 2008.

Just prior to 2008, during the halcyon days of easy mortgages, homeowners jumped onto the debt bandwagon by refinancing their homes and incur more than $300 billion in debt as the value of their properties increased. Many used their new-found wealth to purchase furnishings, automobiles, vacations or reinvest in the stock market. By the time anyone realized that the homes and stocks were highly overvalued, the stock market took a tumble, major lenders declared bankruptcy, and the world suffered through a massive recession.

More than a decade later, as global economies are still climbing out of the mire, the story is repeating itself, this time with major corporations leading the way. These companies are using cheap credit to pay dividends to stockholders and buy back their own stock. This has driven corporate debt to record heights with inflated assets. Sooner or later, the bubble will burst.

Corporations used to invest in equipment, products, and innovative services to generate growth and profits. In the buyback economy, the cash goes to stockholders, instead, while the companies stagnate.

Apple recently announced a $100 billion buyback of its stock. Since 2012, the company has paid $210 billion to its shareholders. In 2017, public companies used more than $800 billion of their equity to buy back stock and increase their debt.

As a consequence of this corporate borrowing spree, more companies are binging on debt vs. focusing on their bottom line. This is a bad position to be in during any kind of economic turndown or when interest rates rise. When the time comes, a large amount of defaults is expected, causing renewed economic stress. It should serve as a warning to companies of problems that may lie ahead.

The world is drowning in debt. In addition to corporate debt, household and government debt are at a record high level, while interest rates are historically low.